Type-writing machine.



T. L. KNAPP. TYPE WRITING MACHINE.

APPLICATION FILED DEO.23,1911.'

1,082,685 Patented July 16, 1912.

2 SHBETSS HEET 1.

he day T. L. KNAPP.

TYPE WRITING MACHINE.

APPLICATION FILED DBO. 23, 1911. v

' Patented July 16, 1912.

2 SHEETSSHEET 2.

UNITED STATES PATENT OFFICE,

THERON L. KNAPIP, 0F WOODSTOCK, ILLINOIS, ASSIGNOR TOTHE OLIVER TYPEWRITER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

TYPE-WRITING MAQHINE.

Application filed December 23, 1911.

To all whom it may concern:

Be it known that I, THERON L. KN P, a

Writing Machines; and I do herebydeclare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in typewriting machines and more particularly to certain novel features of construction in connection with the key-levers, by means of which the several key-levers may be caused to act with uniform effect upon the universal bar, which operates the spacing mechanism and the rib oil-feed. w v

The invention also relates to novel means by' means of which theuniversal bar itself may be adjusted with reference to the keylevers. Y

The improvements are shown in the accompanying drawings as applied to a machine of the kind shown in Letters Patent No.

Specification of Letters Patent.

834,565, granted to Cross and Grifliths,

5 October 30th, 1906, but are applicable to machines which differ in details of construction from those shown in said patent.

The invention consists of the matters hereinafter described and more particularly pointed out'in the appended claims.

In the drawings,-Figure 1 is aview representing a longitudinal vertical-section through the base-plate of a typewriting machine provided with my improvement, the section being taken between two adjacent key-levers. Fig. 2- is a view representing a partial plan of the machine as looked at from below. Fig." 3 is a View representing a partial transverse section through the parts of the -machine-shown in Fig. 2; the

plane of-the section; being indicated by the' line 33 of Fig. 2. il ig. .4 is a viewrepre- ,senting in side elevation that part of the. key-lever whichjis located above the universal bar. Fig. 5 is a view representing a partial section through Fig. 2 in a plane indicated by the line 55 of Fig. 2.

As-shown in the drawings,. A indicates the "base-frame of'the'machine; Said frame has a horizontal top portion and. depending Patented July 16, 1912. Serial No. 667,471.

flanges at the side and backparts thereof forming a hollow structure within which .-'the rear end of the key-levers areinclosed.

B indicates the key-levers which extend "at their rear ends to the base-frame Aby versely of said key-levers. Said levers, in the typewriter of the type shown in the drawings and known as the Oliver, are arranged in two laterally separated groups located one on each side of the longitudinal center line of the machine and the key- "ings constitute the levers belonging to one of said groups. The pivot rod 0 is the common pivot point or fulcrum for all keylevers belonging to said group. D is a universal bar extending transversely under the key-levers and is adapted to'be operated upon by any one of such keylevers. Said universal bar constitutes the rear member of a vertically swingin frame having arms D? which are pivotal y connected at their forward ends to lugs'D secured to the base-frame, said frame operating the escape mechanism and the ribbon mechanismin the usual manner.

E indicates the escapement lever and It :the uprightbar or link connecting said lever mg the universal bar. F indicates the slotted yoke by means of which said link F is connected to the said arm D The con struction thus far is familiar and substantially as described'in the patent heretofore il med. The saidarm D is connected to the slott'ed yoke F by means of a bolt or screw G (see Figs. 1 and 5) which extends through the horizontally disposed slot in said slotted arm and through a vertical slot d inethe arm D As shown in the drawings, the bolt Gr has a part 9 rectangular in section and having a sliding bearing in. the slotted yoke F The threaded part 9 of the bolt is reducedin diameter, thus forming a shoulder clampingly engaged between a nut K threaded upon the bolt intermediate the arm D and the slotted yoke F and a nut 10 in a direction from front to the rear of the machine and which are pivotally connectedmeans of a horizontal rod C extending translevers illustrated in 121 e accompanying drawwith one of the arms D of the frame carry- 2 adjacent the said rectangul part through the vertical slot 0! in the arm D of.

threaded upon the end of said screw. A washer is is preferably interposed between the nut is and the adjacent face of the arm D By means of this construction the bolt G may be adjusted vertically with reference to the arm D so'that the rear end of the iuiiversal bar frame may be raised or lowered with reference to the slot-ted yoke F This operates to adjust the universal bai' vertically toward or away fromthe keylevers B. 1

"Each key lever has a longitudinally extending slot 5 located above the universal bar D. Said slot is located near the lower edge of the'key-lever and extends a short distance to the -front and to therea'r of the universal bar so as to provide'a long, vertically narrow strip of metal 6 above the universal bar and integrally connected at each end with the key-lever. Said metal strips of the key-levers may be easily bent to raise or lower their bottom edges, that is to say,.the edges whichcontact with the universal bar in the operationof the key levers, so as to cause all the key-levers to act with uniform efi'ecton the universal bar.

This construction provides a simple and efficient means of adjustment, and since the adjustable member-is a part of the key-leveritself, no special guiding means for the keylevers in the neighborhood of the universal bar is required, as in the case where the bendable member without unduly weaken-i ng it adjacent said'bendable member.

e having lonintegral at each end with a 'key-levervand being bendable in a vertical direction, where-. by the key-levers may be caused to act with uniform effect upon the universal bar. Y

2. In a typewriting machine in combination with the key-levers, a vertically swinging frame including a universal bar exten ing transversely under said ke -levers and an arm extending parallel to said key-levers,

an escapementlever, a vertically reciprocable bar adapted for the operation of said escapement lever, said bar having a slotted yoke at its lower end adjacent said arm, means having sliding bearing in said slotted I yoke and providing a coimection between said slot-ted yoke and said arm whereby said arm is adapted for reciprocating said bar, said means being'vertically adjustable.

' 3. In a typewriting mac ine :in'comhination with the key-levers, a vertica y swinging frame including a universal bar extending transversely under said key-levers andf an arm extending parallel to aid key-levers, an escapement lever, a vertica 1y reciprocable bar" a'dapted for the operation of said cs capement lever, said bar having a slotted yoke at its lower end adjacent said "arm, a

bolt having sliding bearing in said. slot-tedarm, said bolt being provided witha shoulder adjacent said slotted arm, arid having a threaded stem extending th roughe vertical slot in said arm, and clamping nuts on said bolt at each side of said arne;

In testimony, that ..I, claim the ioregoing -as my invention I aflixmy signature in the. presence of two witnesses, this 18th day of December A. D. 1911. 1

' THEBON L. KNAPPzf v Witnesses i B. C.'YOUNG, f

A. J. ULLElf Copies of this patent may be obtained {or five cents each, by addressing the"""doinmissioner qt new, 

